Circuit/System Testing (Without Amplifier)
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the left front speaker harness connector.
- Test for AC voltage between the left front low level audio signal (+) and left front low level audio signal (-).
- If AC voltage is not present, replace the radio.